Erastus b



(No Model.)

B. B. BARKER.

ROLLER FOR PHOTOGRAPHIG SENSITIVE PAPER. No. 341,633. Patented May 11,1886.

WITNESSES INVENTOR Q9 a. @QQM 6. v BY flu/WW 1 -6; 1 ATTORNEYS.

UNITED STATES PATENT OFFICE.

ERASTUS B. BARKER, OF NFAV YORK, N. Y., ASSIGNOR TO E. & II. T. ANTHONY& 00., OF SAME PLACE.

ROLLER FOR PHOTOGRAPHIC SENSITIVE PAPER.

SPECIFICATION forming part of Letters Patent No. 341,633, dated May 11,1836.

Application filed November 21, 1835. Serial No. 183,517. (No modei.)

To all whom it may concern:

Be it known that I, EKASTUS B. BARKER, of the city, county, and State ofNew York, have invented a new and useful Improvement in Rollers forPhotographic Sensitive Paper, of which the following is a full, clear,and exact description.

This invention relates to rollers used in con uection with photographiccameras for making negatives on paper. In such cameras the paper onwhich the photo-negative is made is stretched between two rollers thatare arranged within the camera, the paper sheet or web at the startbeing rolled upon one of the rollers and then reeled off and rolled uponthe other roller by turning the same as fast as the operator proceedswith the picture taking. An example of such rollers may be seen in thepatent granted to Walker and Eastman, May 5, 1885, No. 817,050. In usingsuch rollers, when the stock of paper carried thereon becomes exhaustedit is necessary to remove the empty roller from the camera and wind uponit a new supply of the sensitive photographic paper. This is a slow andtedious operation, which must be performed in the dark-room.

The object of my invention is to provide hollow rollers or cylinders onwhich the photopaper is wound or stored, said cylinders being so made asto fit and readily slide upon the camera-rollers, thus obviating theinconvenience of winding thepaper upon the photoroller itself and savingmuch time.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure l is a perspective view of the ordinary Eastman camera-roller forphotographic paper. Fig. 2 is a perspective view of my i1nprovedcylindrical roller intended to fit and.

slide upon the Eastman roller. Fig. 8 is a cross-section of the same.Fig. 4 is a perspective view of my improved roller, upon which a web ofpaper is wound ready for use. Fig. 5 is a perspective view of myimprovement as applied upon an ordinary Eastman photographic-cameraroller.

A is one of the ordinary photographic-paper rollers, which are usuallyconstructed of solid wood and have a groove, a, on one side, whichreceives the end of the paper when it is wound upon said roller.

B is the usual cross cut or groove in one end of the roller, whichreceives ablade by which the roller is turned.

The foregoing parts are made and operated in the manner well known tophotographers and shown in said Eastman patent, and therefore no furtherdescription of them is required.

My invention consists of a hollow cylindrical roller, 0, constructedupon its interior surface in such a manner as to fit upon the exteriorsurface of the ordinary photographiccamera roller.

I construct the interior surface of my improved roller 0 with aninwardly-projecting feather, D, which projects into and fits within thegroove a of the solid roller A, so that when the solid roller is turnedit will carry with it my improved cylindrical roller. Instead of acontinuous feather, D, one or more inward projections may be used andmade to fit into the groove a.

The exterior surface of my improved roller is'made smooth, but isprovided with a longitudinal flexible flap, E, to permit the insertionunderneath the flap and between it and the surface of the roller of theend of the web or sheet of photographic paper that is to be rolled uponmy roller, as shown in Fig. 3, in which F is the paper web.

In rolling the web of photographic paper upon my roller 0 the end of thesheet of paper is placed underneath the flap E and press ure applied tothe exterior of the flap. The roller is then turned, which causes thepaper to be wound upon my roller, and when a sufficient quantity hasbeen wound my roller, with its supply of photographic paper, is readyfor use, all that is required being to slip my roller 0 and its stock ofpaper upon the solid roller A, as shown in Fig. 5.

The material which I find best adapted to the construction of my roller0 is paper, and I make or prepare the roller in the following manner: Iprovide a solid cylindrical former or roller having in its surface alongitudinal groove corresponding to the groove a, hereinbeforedescribed, in the ordinary wooden roller, A. I

then take a strip of ordinary card-board paper, which I suitably moistenwith cement or other material, and I apply the paper to the outside ofsaid roller and press a portion of the paper into the groove thereof. Ithen wind one or two folds of the card-board paper upon the roller,using cement between the folds, and then allow the paper to dry upon theroller, leaving a free end or flap, E, unceniented, as shown in Figs. 2and 3. As soon as the paper roll is dry, it may be removed from itsformer, and it will be found that a strong and substantial hollowroller, suitable for carrying photographic paper and for use upon theordinary photographicpaper roller, has been produced, the inwardprojection or feather being thus made in one piece with my roller.

Instead of being made of paper, my improved hollow roller may be made ofmetal or any other suitable material, and the inwardlyprojecting feathermay be applied thereto in any suitable manner.

By the use of myinvention all rewindingot' the paper upon the ordinaryphotographic roller is obviated, because the paper may be put up inrolls ready for use upon my improved hollow cylinder, which may bequickly slipped upon the ordinary roller, and when the supply ofphotograplnc paper thereon is consumed my empty roller'or casing may beremoved from the solid roller and a new hollow cylinder with a newsupply of photo- Having fully described my inventionl claim as new anddesire to secure by Letters Patent-- 1. As an improved article ofmanufacture, a tubular roller for carrying photographic sensitive paper,constructed with an inwardly-projecting feather and adapted to fit uponthe exterior of the ordinary photographic paper roller, as set forth.

2. In a tubular photographic-paper roller, the flap E, made integralwith the surface of the roller by leaving the free end of the sameunceinented, substantially as shown and described. I

3. In a tubular photographic-paper roller, the combination, with theinterior surface of such roller, of one or more inwardly-projectingfeathers and one or more exterior flaps, substantially as shown anddescribed.

4. The combination, with the ordinary photographicpaper roller, of ahollow cylindrical roller provided with an interior feather orprojection to lit a groove or grooves in the ordinary roller, and with aflexible flap upon the exterior surface to receive and hold the end ofthe photographic-paper web, substantially as described.

5. The combination, with a tubular roller having an inwardlyprojectingleather and an exterior flexible flap, of a sheet or web of photographicsensitive paper, substantially as described.

ERASTUS B. BARKER.

\Vitnesses;

O. Snncwrcx, EDWD. M. CLARK.

